Hypodermic syringe.



PATBNTED Nov. 10,1903.

J.. H. MGCULLooH. HYPODERMIG SY'RINGB. APPLIUATION FILED JUNE 13, 193,

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UNITED y, STATES' PatentedNovember l0, 1903.

lfrnrrr OFFICE.

HYPODERMIC SYRlNCE.4

SPECIFICATION forming part of Letters Patent No. 743,743, dated November10, 1903.

Application led .Tune 13, 1903.

To a/ZZ whom it may concern:

Beit known that I, JOHN HOWARD MoCUL- LOCE, a citizen of the UnitedStates, residing, at Newville, in the county o Cumberland, State ofPennsylvania, have invented certain new and useful Improvements inHypodermic Syringes, of which the following is a de-r scription,reference being had to the accompanying drawings and to the letters ofreference marked theren.

My invention relates to an improvement in combined hypodermic syringesand serumcontainers, the object being to provide a device in which theserum or other iiuid maybe retained in a hermetically sealed packageplaced within the body of the syringe as a' storage receptacle and whichserum -container when it is desired to use the duid may first be drainedinto the body of the syringe by a movement of said serum-container, thelatter then being used as a piston or plunger to drive home the fluidinto the patient.

The invention comprises, primarily, a hypodermic-syringe body incombination with a serum-container which is adapted to act as a plungeror piston.

Secondly, it comprises a hypodermic-syringe body, a serum-containerwithin the same having reciprocatory movement with respect thereto andengaging the inner wall thereof, whereby when the serum-container ispunctured and the said container is reciprocated it may Iirst cause theserumto dow from the container into the syringe-body and on the reversemovement to be expelled.

Thirdly, it comprises in addition to the other features a combinedpuucturing hollow plug and valve adapted to be connected with thecontainer to allow of passage of the fluid through the container intothe syringe-body and a hypodermic needle adapted to be secured to thesyringe-body.

Finally, the invention consists in the matters hereinafter described,and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which- YFigure l is a sectional view of a hypodermic-syringe body and containerconstructed in accordance with my invention. Fig. 2 is an elevation,partly in section, of the device when the combined container and pistonis seen No. 161.351. (nu man.)

being withdrawn to allow the serum to flow into the syringe-body. Fig. 3is a similar view showing the hypoderrnic needle in posi tion and thepiston and container being forced in to expel the serum. Fig. 4t is adetail view of the plug and valve, and Fig. 5 is a detail view of thehypodermic needle detached.

In the drawings the body of the syringe is represented at A and is madeof glass or other suitable material, narrowed at the top to form a neckB, over which a rubber cap C is adapted to lit.' At its lower end thesyringebody A is opened and adapted to receive the serum-container D,constructed of any suit able material, provided atits upper end with acontracted neck, adapted to be'closed at the mouth by a robber packingd, and lower down within the neck by a soft-metal packing b. Near theupper end said container D is provided with a washer of rubber orsuitable material, as shown at c, screw-threaded thereon, this being ofa size suicient to form a tight joint with the inner Wall of thesyringe-body A. At its lower end the serumcontainer D projects beyondthe syringebody and has itsV lower end formed to be easily taken hold ofby the ngers of the opcrater, the lower end being closed by softmetalpacking b'. The lower end of the syringe-body A is formed with aninterior shoulder or flange d, designed to be engaged by the washer cwhen the serumcontainer is withdrawn to the lower end of thesyringebody, so as to prevent its accidental withdrawal therefrom and toform also a closed chamber.

E represents a hollow needle-plug having a pointed solid lower end andan opening e entering the tube and having at its upper end anoutwardly-opening valvef.

When it is desired to use the device, the packing b in the lower end ofthe serum-container is rst punctured by the needle-plug E. The cap C isthen removed and the needie-plug E forced down through the rubberpacking ot and soft-metal packing b until its head g tits over the mouthof the serum-container. (Replace rubber cap O.) The lower end of thecontainer is then grasped and the container moved outwardly fromthesyringe, this action creating a vacuum in the syringebody and allowingthe serum to flow out through the valve f into the body. Either beforeor after the plug E is inserted in the upper end of the container theneedle F, which at its lower end is attached to a cap or head h, isplaced over the neck of the syringebody, and when the serum has flowedfrom the container into the syringe-body by the withdrawal action of thecontainer on the inward movement of the latter the serum will be forcedthrough the hypodermic needle into the body of the patient. The partDptherefore acts as a serum-container and piston or plunger.

Various minor modifications and changes may be made without departingfrom the spirit of the invention.

Having thus described myinveution, what I claim as new, and desire tosecure by Letters Patent, is-

l. A hypodermicsyringe,com prising a body and a combined serum-containerand serumexpelling device carried thereby with means for establishingcommunication between the serum -container and expelling device and thebody; substantially as described.

2. Ahypodermicsyringecomprisingabody, a serum container or receptacletherein, having an annular ring thereon snugly fitting the inner wallof' the body portion, said serumcontainer being adapted to reciprocatewithin the syringe-body with means for establishing communicationbetween the serum-container and expelling device andthe body;substantially as described. y l

3. Ahypodermicsyringe comprisingabody, a serum containeror receptacletherein, having an annular ringthereon snugly fitting the inner wall ofthe body portion, said serumcontainer being adapted to reciprocatewithin the syringe-body, said body having an inwardly-projecting annularportion, against which the annular ring on the container strikes in theoutward reciprocation thereof with means for establishing communicationbetween the serum-container and expelling device and the body;substantially as described.

4. Ahypodermic syringe comprising.,r a body portion having an open lowerend and having means at the upper end for the attachment of a hypodermicneedle, a movable serum container or receptacle having means for forminga close joint with the inner wall of the body portion, and means forestablishing communication between the serum-container and the bod)7portion, whereby in the outward movement of the serum container orreceptacle, the fluid may pass into the body portion and in the inwardmovement thereof, the fluid will be expelled through the needle;lsubstantially as described.

5. Ahypodermicsyringe,comprisingabody portion having an open lower endand having means at the upper end for the attachment of a hypodermicneedle, a movable serum container or receptacle, having means forforming a close joint with the inner wall of the body portion, a valvedplug adapted to be placed within the upper end ofthe serumcontainer toestablish communication between the same and the body portion, wherebyin the outward movement of the serum container or receptacle, the fluidmay pass into the body portion and in the inward movement thereof,thefluid will be expelled through the needle; substantially as described.

6. Ahypodermicsyringecomprisingabody portion, and a hollow movableplunger or piston therein adapted to contain the serum or other fluidwith means for establishing communication between the serum-containerand the body portion; substantially as described.

7. A hypodermic syringe comprising a body portion, and a hollow movableplunger or piston therein adapted to contain the serum or other fluid,and a valved opening between said hollow piston or plunger and the bodyportion; substantially as described.

8. A hypodermicsyringecomprisingabody portion and a hollow movableplunger or piston therein adapted to contain the serum or other fluid,an annular washer surrounding the plunger or piston, and an annularshoulder at the outer end of said body portion with means forestablishing communication between the serum-container and the bodyportion; substantially as described.

9. Ahypodermic syringecomprisingabody portion, and a hollow movableplunger or piston therein adapted to contain the serum or other fluid,and a hollow tube or plug, with a valve at the outer end thereof openinginto the body portion; substantially as described.

l0. A hypodermic syringe comprising a body portion, and a hollow movableplunger or piston therein adapted to contain the serum or other fluidand having openings at its upper end adapted to be-closed by suitablepacking, a puncturing hollow valved tube adapted to be forced throughthe packing and establish communication betweeen the piston and the bodyportion, and a hypodermio needle adapted to be secured to the bodyportion; substantially as described.

11. A hypodermic-syringe body, a serumcontainer within the same andhaving reciprocating movement with respect. thereto, and engaging theinner wall thereof, whereby when the serum-container is pnnctured andreciprocated, it may first cause the serum to flow from the containerinto the syringebody, and on the reverse movement to be expelled fromthe syringe-body; substantially as described.

In testimony whereof I aii'ix my signature in presence of two witnesses.

JOHN HOWARD MCCULLOCH.`

Witnesses:

JACOB L. EMLLT, FRANK H. JENKINS.

IOC

